リストの上境界線に対する、リストアイテムの位置
リストの現在のアイテム (PRIM_MD.ListCurrentItem) のメンバ
データタイプ - 整数
詳細
The Top property specifies the number of pixels between the upper edge of the component and the upper edge of its container in pixels.
If the control is under layout management, the Top property may be automatically modified by changes to other controls or the layout manager.
To determine the positon on the control on the screen, use the ScreenTop property.